package com.itheima.dao;

import com.itheima.domain.User;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

public interface UserDao {

  //  @Select("select * from user")
    List<User>findAll();
  //  @Insert("Insert into user(username,password)values(#{username},#{password})")
    void save(User user);
  //  @Delete("delete from user where sid=#{sid}")
    void delete(Integer sid);
//    @Update("update user set username=#{username},password=#{password} where sid=#{sid}")
    void update(User user);
 //   @Select("select * from user where sid=#{sid}")
    User findById(Integer sid);

}
